Revenue and profit are pretty similar in meaning, but I would say that it is (a) Profit. Let me know if this helps! :)
A 'fire-step' that allowed soldiers to see and shoot over the parapet.
The guess what be The Knights of labor *not sure if this is 100% correct*.
<span>First off they had brahmins which were priests and teachers , already have some since of organization, because they have education. They also had kings and other types of rulers , and divisions of warriors. They also had cultivators which can refer to artisans , merchants, traders etc. Basically they were a functioning organization with people who all had their own job serving their purpose.
</span>